package xunhuan;

import java.util.Scanner;

public class test12 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("输入一个大于2的整数: ");
        int a = sc.nextInt();
        int b= 1;

      while (b <= a){
          b = b*b;


      }
System.out.println(b);
    }
}
